Analysis of test questions: build an extra library to highlight and strengthen good scientific and cultural accomplishment. One less prison can be built, which shows that good scientific and cultural cultivation can promote ideological and moral cultivation. Therefore, choose item D in this question. Scientific and cultural literacy and ideological and moral literacy are mutually reinforcing. Not to strengthen scientific and cultural cultivation, but to improve ideological and moral cultivation. It cannot be said that people's ideological and moral level depends on people's scientific and cultural literacy. So item AB is wrong. Item c does not meet the meaning of the question, so it is excluded.

Comments: The purpose of this topic is to examine students' understanding that good scientific and cultural cultivation can promote ideological and moral cultivation. The difficulty is moderate. The key to scoring lies in grasping the meaning of this sentence in the title.